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Патент USA US3054228

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Sept. 18, 1962
E. D’AMATO
3,054,21 7
Sept. 18, 1962
E. D’AMATO
3,054,2 1 7
SPHERE SPINNING DEVICE
Filed 0G‘b. 17, 1960
4 Sheets-Sheet 5
Sept. 18, 1962
E. D’AMATO
4
3,054,217
SPHERE SPINNING DEVICE
Filed 00t. 17, 1960
4 Sheets-Sheet 4
{là /09
INVENTOR
WD‘MiL?
United States Patent ()
1
3,054,217
Patented Sept. 18, 1962
1
2
3,054,217
easy so that With a minimum amount of practìce one may
SPHE‘RE SPINNING DEVICE
Ernest D’Amato, 147-37 Roosevelt Ave., Flushing, N.Y.
Filed Oct. 17, 1960, Ser. No. 63,200
5 Claìms. (Cl. 46-243)
This invention relates broadly to the art of spinning
or causing rotation of spherical objects, balls and the
cause rotation of the sphere and then transfer the spin
ning sphere to a ?nger tip for its continued balanced
rotation the'reon.
The device has been designed for use with relatively
light spheres or balls of varying diameters Within limits,
of course.
As a matter of fact the versatility of my
like, and in its more speci?c aspects it relates to a
device operable to mount a spherical object, cause it to
device Will be recognized when it is understood that sports
balls which may be bought in usual trade channels may
spin While providing means facilitating removal of the 10 be used as the spinning sphere, in other Words my device
spinning sphere from the device to a support such as a
?nger tip, rod or the like for its continued spinning or
rotation thereon; and the nature and objects of the in
vention Will be readily recognized and understood by
does not demand a sphere having unusual, uncommon or
particularly unconventional characteristics.
‘I have devised a sphere spinning device which is
economical to produce, may be manually operated or
those skilled in the art to which it relates in the light of
the following explanation and detailed description of the
accompanying drawings illustrating What I at present be
motor operated and under normal conditions of use Will
lieve to be the preferred embodiment or mechanical ex
in view, as well as certain others which Will be apparent
pressions of my invention from among various other
from the following explanation, the invention consists
in certain novel features and designs, construction, mount
forms, arrangements, combinations and constructions, of
which the invention is capable Within the spirit and
scope thereof.
In the performing arts it is not uncommon for jugglers
or performers having skill and dexterity to cause a
spherical object to spin and then While it is still spinning
to mount it on a ?nger tip, rod or the like and to balance
it while it continues its rotatory action. Great skill and
dexterity is required to accomplish this feat and the secret
not Wear out, deteriorate or require maintenance.
With the foregoing general object, features and results
ing and combination of elements, as Will be more fully
and particularly referred to and speci?ed hereinafter.
Referring to the accompanying drawings:
FIG. 1 is a view in perspective of the preferred form
of my sphere spinning device With a sphere mounted there
on in position to be rotated.
FIG. 2 is a bottom plan view of the device of FIG. 1.
FIG. 3 is a view taken on line 3_G of FIG. 2.
of success lies in one’s ability to cause the sphere to rotate
FIG. 4 is a view in side elevation of a modi?ed or
at a suf?cient speed so that its axis of rotation Will remain 30 manually operable form of my device With parts thereof
substantially constant or vertical not only While spinning
but also While being transferred to a ?nger tip or other
support for its continuecl rotation. Change of axis of
rotation Will cause wobbling of the sphere or ball, upset
the equilibrium thereof and cause the sphere to spin
away from its support. T0 achieve the skill of a juggler
in this ?eld requires a degree of inherent balancing
dexterity and also many hours of practice. It has been
broken away.
FIG. 5 is a view similar to FIG. 4 With casing parts
broken away and illustrating the operating mechanism.
FIG. 6 is a view taken on line 6-»6 of FIG. 4.
FIG. 7 is a view taken on line 7-7 of FIG. 5.
In the accompanying drawings I have used the nu
meral 1 to designate in its entirety the supporting base
of my device which comprises a substantially rigid plate
like member which may be made of plastic, light weight
my experience that without a certain amount of natural
skill and long practice it is not possible to mount a spin 40 metal or of any other suitable materiah The supporting
ning sphere on a ?nger tip, rod or the like, balance it and
base 1 is of generally V-shaped con?guration providing
keep it spinning or rotating.
a rear apex 3, a pair of spaced forward apices 5 and 7,
«One of the many problems inherent in the art of gen
all of which are connected by a body portion 9. The
erating rotation in a sphere and then transferriug it to a
rear edges of the body portion 9 are of forwardly diverg
relatively thin support for its continued balanced rotation
ing form as at 11 and 13 and at their rearward or inner
thereon, is to make the transfer While maintaining the 45 ends are formed to provide a ?nger notch 1‘5‘, which notch
axis of rotation of the sphere. This is extrernely di?ìcult
is aetually formed in the forward end of the body portion
to accomplish because radial pressures Will normally be
9 of the base plate 1. The purpose of ?nger notch 15
applied to the sphere during the transfer operation and
Will becorne apparent as this description proceeds.
such radial pressures Will upset the equilibr-ium of the
Mounted on the upper side of supporting base 1 ex
rotating sphere and make its balanced rotation on the 50 tending forwardly from apex 3 is a bearing bracket 17
?nger tip or the like impossible.
which may be ?xed to the base plate in any suitable
I have overcome the aforementioned and other prob
manner as by screws 19. The rear tace 21 of the bear
lems which have been encountered in this art by pro
ing bracket is angled forwardly relative to a piane per
viding an ingenious device which Will produce the desired
pendicular to the piane of body portion 9 of supporting
speed of rotation in a sphere While not permitting sub 55 base 1 and a ball bearing assembly 23 is ?xed to the
stantial deviation of the axis of rotation thereof. Not
bracket by means of a stud or the like 25. Disc shaped
only does my device generate such a rotative condition
drive roller 27 of plastic, light metal or other suitable
in the sphere but it also provides means whereby the
material is formed With a central opening which re
sphere which is rotating on the device may be transferred
ceives the ball bearing assembly therein, the edge of the
therefrom to a ?nger tip or the like for the continued 60 opening being ?xed to the outer race 29’ of the bearing
balanced spinning thereof. The device which I have
assembly by cementing or by a press ?t or in any other
evolved facilitates and simpli?es this transferring opera
suitable way. I provide a circular cap 311 which extends
tion for it is so constructed and designed that radial
over and beyond the opening in the drive roller and has
forces which would upset or change the axis of rotation
?xed thereto a gear 33 by means of screws 35 which
65 extend therethrough and ‘through the cap, and are threaded
are substantially elirninated.
In devising this sphere spinning device I have been
into drive roller 27. The gear 33 is centered by means
concerned With a structural organization and arrange
of a post 37 which extends With a friction grip through
ment which Will provide fun and amusement for persons
a central opening in the cap and a hub 39 is ?xed to post
of all ages without any particular juggling or balancing
37 by means of a set screw 41.
skill for I have made its operational technique simple and 70
I provide a handle designated generally by the numeral
3,054,217
3
radial or other forces are applied to the rotating sphere
so that its axis of rotation remains constant to facilitate
is ?xed to the underside of body 9 of supporting base 1
and functions to connect the handle to the base.
4
spinning device it will be appreciated that no upsetting
43, the handle consisting of a depending hand grip por
tion 45 having a forwardly extending portion 47 which
the balancing operation. ‘Since the notch 15 is positìoned
An arm
at the mid point between the rollers, that is the notch
is located an egual distance from each roller, the lifting
49 extends upwardly from band grip portion 45 and
on its upper end supports an electric motor 51 having a
of the sphere by the ?nger Will occur on the axis of rota
tion so no upsetting forces are generated by the ?nger
shaft 53 extending forwardly from the motor. A pinion
55 is ?xed to the motor drive shaft and is in mesh With
gear 33. I mount a series of electric batteries 57 on the
contacting operation.
It Will now be appreciated that the device whìch I
under side of the supporting base, such batteries may be 10
have evolved provides means whereby one who is not a
removably mounted in any suitable clarnp brackets or
skilled juggler and who may not be unusually dexterous
the like 59. Conductors 61 connect the batteries With
may spin a sphere or hall on the tip of his ?nger or on a
the motor for powering the latter, and I interpose a suit
rod, stick or the like. This device will aiford substan
able electric switch 63 controlled by push button 65 for
tial amusernent to young and old alike and also Will be
controlling operation of the motor.
of value to those performers who are skilled in this par
Thus, when switch 63 is closed by depression of the
ticular ?eld.
push button the motor Will operate and gear 33 Will be
As I have stated above rny inventìon is operable by
rotated by pinion 55. Rotation of gear 33 which is
connected to drive roller 27 Will cause rotation of the
latter on its ball bearing assembly.
manual means as well as by automatic or electric means.
20 In FIGS. 4 through 7 of the drawings I have illustrated
a manually operated sphere spinning device whìch in
The drive roller 27 is mounted on its bracket at such
an angle With respect to the supporting base 1 so that the
included angle between the roller and base is from 45°
to 90", and I have experienced excellent results When
such angle is on the order of 60".
cludes the same supporting base whìch I have described
in connection With the preferred form of my inventìon.
While I have not illustrated the supporting base in full
The peripheral edge 67 of roller 27 is bevelled for
wardly and inwardly and has ?xed thereto an annular
ring 69’ of any suitable friction material.
the same structure, angled the same and mounted the
same as the supporting rollers 69 and 71 disclosed in FIG.
the modi?ed or manual form of my inventìon, nor
have I illustrated the two supporting rollers, they are of
1 of the drawings.
Rotatably mounted at the apex 5 is a disc shaped
In this modi?ed form of my inventìon I have shown
supporting roller 69 while a further disc shaped support 30
a part (the rear part) of the supporting base and I have
ing roller 71 is rotatably mounted at apex 7. Bach roller
designated it by the numeral 81. The handle is desig
is rotatably supported in a conventional manner on a
nated generally by the numeral 83 and involves a band
hall bearing assembly 73 which is supported on a bearing
grasp portico 85 of generally hollow construction from
bracket 75 which is ?xed to the under side of the support
whìch hand grasp portion upwardly extends an arm 87
ing base. The rollers 69 and 71 are of the same diameter
whìch supports and mounts certain of the operating
as drive roller 27 and the peripheral edges 77 have the
mechanism as Will be hereinafter described.
same angle of bevel as the described edge of roller 27.
The rollers 69 and 71 also extend in the same angular
relationship to base plate 1 as does drive roller 27.
The handle
is rigidly attached to the supporting base 81 by means
of a bracket 89 which is ?xed to the underside of the
Referring particularly to FIG. 1, Wherein a spherical 40 supporting base in any suitable manner. A trigger or
operating lever 91 is pivotally mounted as at 93 to the
object or hall 79 is illustrated mounted in operative
bracket 89. A link 95 is pivotally connected at one end
position on the device for being rotated to a desired speed
as at 97 to the rear end of the trigger and at its other
end is pivotally connected as at 99 to a segmentary slide
for removal from the device for continued spinning on
a ?nger tip, rod or the like. It Will be recognized from
member 101 which is mounted Withìn the hollow handle
for sliding movement therein. At its forward end the
slide member is ?xed to a rack 103 which is adapted to
slide Within the handle and the arm 87 and is maintained
in position by means of a plate 105 which is ?xed to the
inside of the handle. The sliding member is biased lo
rearward or retracted position by means of a spring 107
?xed to the sliding member and to a pin 109 ?xed to
the handle. A supporting ?ange 111 may be provided
consideration of the drawings that the drive roller 27 ‘
and the supporting rollers 69 and 71 provide a three point
support organization for the spherical object, and that
the projected planes of said disc shaped sphere supporting
rollers and the drive roller form an equilateral triangular
pyramid, and that the axis of rotation of the spherical
object is coincident With the major axis of the pyramid.
The notch 15 is formed in the supporting base and extends
rearwardly therein to a point substantially aligned With
the axis of rotation of the spherical object. The angular
relation of each roller With respect to the supporting
base and the bevel of the edges of the rollers ensures
against any wedging or other undesirable action occurring
against the sphere.
With the device held by the handle and the ball sup
ported at the three points by the three rollers the spinning
operation may be started by depressing the switch button
65 whereupon the drive roller Will be caused to rotate
and will cause spinning or rotation of the sphere With
out slipping due to the friction action of the annulus 69.
When the sphere has reached the desired rotative speed
the operator of the device inserts the index ?nger of his
free band upwardly through the notch 15 into contact With
the spinning sphere and with his ?nger lifts the spinning
sphere from its supported position on the three rollers
for keeping the sliding member in proper operating posi
In the arm 87 I rotatively mount a pinion 112
which is in mesh With the rack and is, of course, rotated
thereby when the rack is reciprocated. Fixed on the
shaft of the pinion is a gear 113, the shaft ends 115 and
117 of the pinion and gear being mounted in elongated
slots 119 in the walls of the handle to permit some lon
gitudinal motion of the shafts and the gear and pinion.
I provide a further pinion 121 which is journalled in the
walls of the handle and is normally out of mesh With the
gear 113 but is aligned therewith. The shaft 123 of the
' pinion 121 extends through the forward Wall of the han
'
tion.
dle portion 87 and mounts 011 its outer end a drive plate
125 which is formed With three periphcral notches 127 for
a purpose to be hereinafter described and made clear.
In this form of my inventìon I provide a drive roller
and after the sphere is so lifted the device is moved 70 129 which is generally similar to and operates in sub
laterally from beneath the sphere and the operator then
has the sphere spinning on his ?nger tip. It is to be
understood that a rod, stick or the like could be used
stantially the same manner as the drive roller 27 which has
hereinbefore been described in connection With the pre
ferred form of my inventìon as illustrated in FIG. 1
of the drawings. The drive roller 129 is provided With
instead of the ?nger.
In this operation of transferring the sphere from the 75 three circumferentially spaced studs 131, the heads 133
3,054,217
5
of which project from the rearward face of the drive
rolle'r. With the device assembled the drive plate 125
is in relatively tight engagernent With the rear face of the
drive roller and the heads 133 of the studs extend into
the notches 127 which are forrned in the periphery of
the drive plate. It Will be noticed that the Width of the
notches is greater than the diarneter of the heads of the
studs. This provides for easy assembly of the compo
nents of the device, and endows the device With certain
operating advantages. As in the case of the drive roller 10
6
1. A device for spinning a sphere and adapted for re
moval of said sphere therefrom to a separate support for
its eontinued rotation thereon, including a supporting
base having a forward edge and a rea-r edge, spaced apart
rotata-ble sphere supporting means mounted on and ex
tending -above said supporting base, the lines of contact
on each of said sphere supporting means being in planes
forming an equilateral tr-iangular pyramid, the axis of
rotation of the sphere being coincident with the major
axis of said pyramid, said supporting base having a notch
of the preferred form of my invention the drive roller
forrned in the forward edge thereof and extending rear
wardly to a point substantially aligned Wi?îl said axis of
129 may be provided With a friction ring 135. It is also
rotation of the sphere for insertion of a separate support
to be understood that the drive roller 129 is angled With
into said notch and into engagement With the sphere fo1‘
respect to the supporting base 81 the same as the drive
roller 27 of FIG. 1 of the drawings.
15 removing the sphere frorn said sphere supporting means.
2. A device ‘for spinning a sphere in aecordance With
With the device in operative condition as described
claim 1, wherein said spaced apart rotatable sphere sup
and a sphere being placed on the drive roller 129 and the
porting means are disc shaped and the projected pianes
tWo supporting rollers, which are exactly the same as the
of said disc shaped sphere supporting means fo-rm said
supporting rollers 69 and 71 of FIG. 1 and are related
to each other and to the drive roller in the same manner 20
equilateral triangular pyramid.
as those formerly described rollers, the spinning operation
may be cormnenced. The operator holds the device by
3. A device for spinning a sphere in aecordance With
clain1 1, wherein a handle is ?xed to and depen-ds -from
the rear edge of said supporting base opposite the notch
the handle in one band and With a ?nger operates the
formed therein, for manually holding the device during
trigger or operating lever With a pumping action to recipro
cate the rack, which on its forward operative stroke rotates 25 the sphere spinning operation.
4. A device for spinning a sphere in accordance with
gear 113 and moves it and its shaft forwardly in slots
claim 3, wherein said spaced apart rotatable sphere sup
119 so that on this operative stroke gear 113 meshes With
porting means comprise disc shaped rollers and one of
pinion 121 to cause rotation of drive plate and the drive
said rollers is a drive rolle-r to cause spinning of said
roller. On the return stroke under the biasing action
of spring 107 the gear 113 and pinion 121 Will not be in 30 sphere, a manually actuated operating leve-r mounted on
said handle, and means connecting said operating lever
mesh and reverse rotation Will not occur. The operation
With said drive roller ?or causing rotation of said drive
of transferring the fully spinning sphere from the device
roller when the operating lever is actuated.
is the same as the’: described in connection With the de
5. A device for spinning a sphere in accordance With
vice of FIG. 1 and Will not now be repeated.
It is to be clearly understood that it is Within my con 35 claim 3, wherein said spaced apart rotatable sphere sup
porting means commise disc shaped rollers and one of
templation to use the device without; providing means for
said rollers is a drive roller to cause spinning of said
driving the drive roller which forme one support point of
sphere, Van electric motor mounted on said handle and
the three point support for the sphere. In other words
means connecting said electric motor with said drive roller
my concept covers a device which consists of the handle,
the supporting base and the three rollers which mount 40 for causing it to rotate, and a source of electric power
~for said electric motor mounted 011 said -supporting base
the sphere. When used in this manner without the drive
and electrically connected to said electric motor.
roller, the sphere which is mounted on the three rollers
would be spun by the other band of the operator and then
References Cited in the ?le ci’ this patent
removed from the device in the manner which has been
45
described above.
UNITED STATES PATENTS
It must a1so be recognized that ‘the arrangement and
mounting of the batteries may be varied and other manna]
1,029,904
Allegretti ____________ __ June 18, 1912
operating means than those disclosed may be used With
2,248,596
Wilsey _______________ __ July 8, 1941
Whittle ______________ __ Nov. 25, 1941
our departing from the spirit and scope of my invention. 50 2,263,602
I claim:
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